Stockholders' Equity (Details) - Schedule of share-based compensation expense by line item (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | 9 Months Ended | ||
---|---|---|---|---|
Apr. 30, 2015
|
Apr. 30, 2014
|
Apr. 30, 2015
|
Apr. 30, 2014
|
|
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] | ||||
Share-based Payment Arrangement | $ 113 | $ 283 | $ 319 | $ 497 |
Cost of Clinical Laboratory Services [Member] | ||||
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] | ||||
Share-based Payment Arrangement | 3 | 3 | 9 | 7 |
Research and Development Expense [Member] | ||||
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] | ||||
Share-based Payment Arrangement | 2 | 1 | ||
Selling, General and Administrative Expenses [Member] | ||||
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] | ||||
Share-based Payment Arrangement | $ 110 | $ 280 | $ 308 | $ 489 |